Fluval BioMax 500 Grams

Fluval BIOMAX bio rings have a complex pore system creating an optimal environment where beneficial bacteria can thrive. BIOMAX bio rings have more capacity than most biological filter media and allow ideal water movement throughout the media to ensure optimal contact time for efficient biological filtration. BIOMAX also reduces and controls ammonia and nitrate.

Specifications

Item: A1456

Size: 17.63 oz / 500 g

Type: biological filter medium, porous ceramic rings

Function: supports nitrifying bacteria; helps reduce and control ammonia and nitrate

Replace: every 6 months

Water types: freshwater and marine

Setup & Use

BIOMAX is the biological stage, so it goes last in the filter, after the mechanical and chemical media. The porous ring structure is what holds the contact time long enough for the bacteria in it to work.

Rinse it in old tank water before it goes in, never under the tap. Chlorinated tap water kills the bacteria that make a biological medium work.

Replace it about every six months, and replace it in halves rather than all at once. The rings are the bacterial colony; changing the whole lot in one go is how people accidentally re-cycle an established tank.

Freshness & Storage

Every batch we dispatch carries a minimum of 6 months’ remaining shelf life. Store this product in a cool, dry place away from direct sunlight, with the cap or inner foil closed tightly after each use.

Filter media and substrates carry no manufacturing or expiry date. Their working life begins on first contact with water, not on the shelf.

Returns & Replacement

Returns are accepted within 7 days of delivery, provided the item is unused and in its original packaging. Manufacturer-sealed items cannot be returned once the seal is broken, and sale-priced items are not refundable.

If your item arrives defective or damaged, message us on WhatsApp with your order number, or email us if you would rather, and we will replace it. Approved replacements are delivered within 3 to 5 business days. Transit damage is covered by insurance on every shipment. If tracking shows delivered but nothing reached you, tell us within 48 hours, which is the reporting window Indian couriers allow. Damage caused during installation or use is not covered; replacement spares for such cases are chargeable.

Full terms are on our Cancellation & Returns page.